InLine Screw for 3.5 inch HDD/SSD, 3mm, flat head, silver 100pcs. pack

InLine 77781A screws are designed for secure mounting of 3.5" HDD and SSD drives. These metal countersunk screws feature a flat, 3 mm head, M3 thread and a total length of 4 mm with a 5 mm head diameter, supplied in a pack of 100 in a silver finish.

Advantages

The screws provide reliable fixation for hard disk drives and solid-state drives thanks to their M3 thread and consistent dimensions. Made of durable metal with a flat countersunk head, they sit flush in drive bays and reduce the risk of protruding screw heads. The 100-piece pack ensures a sufficient spare quantity for multiple installations or replacements.

Suitable for

• Mounting 3.5" HDDs in desktop PC cases
• Securing 3.5" form-factor SSDs and adapters
• Replacements during drive upgrades or repairs

Key specifications

• Model: InLine 77781A
• Thread type: M3
• Head type: flat countersunk, 3 mm head height, 5 mm head diameter
• Length: 4 mm
• Quantity: 100 pieces
• Colour: Silver
• Intended use: 3.5" HDD/SSD mounting

How to use

Align the drive with the mounting holes in the drive bay or adapter, insert the M3 countersunk screws through the mounting holes and tighten with an appropriate screwdriver until the head sits flush with the surface. Do not overtighten to avoid damaging the drive or stripping the threads. Use screws on corresponding mounting positions to ensure stable fixation.

Recommendations

For safe installation, verify that the screw length and head profile match the drive bay or adapter specifications. If machining tolerance or plating affects fit, test with one screw before completing the installation. Keep spare screws from the pack for future upgrades or replacements.